WINIX 5520 Air Purifier for Home Large Room Up to 1882 Ft² in 1 Hr With Air Quality Monitor, True HEPA, High Deodorization Carbon Filter and Auto Mode, Captures Pet Allergies, Smoke, Dust.

We are pretty impressed!
Two of us in the house suffer from allergies, and so we decided to try the Winix 5510 in our dusty old house (after we’d vacuumed). We were expecting to be disappointed, but after running it consistently to purifier a larger open space at the threshold of a living and dining room, we noticed a reduction in dust motes and pet dander. The air quality has improved IMHO–if our noses and sinuses and reduced coughing are to be believed. The operating noise level is very quiet on automatic and night settings, but it gets progressively louder as you increase speed. We elevated to waist height it really does the job. We don’t use the app, but it’s a nice feature if you want it. It’s light and easy to move, operate, and maintain. Note: There are replacement filters, but make sure you use the correct part number: 1712-0123-00.

Great Filter, Average Programming
I wish I could give this 5 stars. The filter is very well made. It makes a noticeable improvement in air quality. The fan is the right combination of quiet and powerful. I enjoy the real-time air quality monitoring.That said, the automatic programming needs work. The unit uses a light sensor to automatically switch to Sleep Mode if the room is dark enough. In sleep mode, the fan runs on a super low setting, which is nice for actual sleep but rather irritating during the middle of the day. God forbid I want to run the filter with the curtains closed.Long story short, if I select Automatic Mode, I would prefer if the unit stayed on that setting. The only thing this unit needs is a software update that allows me to defeat the light sensor.Total First- World complaints. All things considered, I would buy this unit again.

Keeps Wildfire Smoke Outside
We’ve had one heck of a fire season this year–and if you live in the Western United States, I can already see you nodding your head in agreement. That’s probably why you’re here reading this review. Thank goodness for air purifiers. Chances are you’ve already looked at tons of them. You might even be confused as to which one to choose. Hopefully I can help you out with that.In essence, all an air purifier has to do is filter the air and expel it in better shape than it inhaled it. Most units (including the Winix unit here) do this by pulling the air through a HEPA filter–and that certainly helps. If all you’re looking to do is reduce dust, you can stop here. Pick a filter, any filter. You’ll get the job done.But why stop with one layer of filtration when this unit offers you four?When the air enters your Winix, it will first encounter a cleanable dust screen. This screen is much like what you may have in front of your computer case fans. Large particles get stuck here rather than in your HEPA filter, meaning you won’t have to replace the HEPA as often. In fact, Winix recommends replacing the HEPA once a year; you may have noticed that other brands recommend changing filters every three months or so. That’s why, and it serves as Layer One.The next layer is a honeycomb filter which is filled with activated carbon. You see, HEPA filters alone won’t eliminate odors. Just like how activated carbon will remove odors from fish tanks when used as part of the tank’s filtration, it also removes odors from the air. Pet dander, wildfire smoke, a certain someone’s love of gassy foods… yeah, you’ll like this function. That’s Layer Two.Layer Three is the HEPA filter itself. Small particles you may not be able to see–but will still do a number on your eyes and sinuses–get stopped in their tracks here.Layer Four is a negative-ion filter that Winix calls “Plasmawave.” Without over complicating the science behind it, this feature will make it harder for viruses to spread and will cause smaller particles to sink where they can be collected easier. This feature can be turned off if you don’t see the need for such thoroughness or perhaps you’re skeptical of the process, but I strongly suggest leaving it on.When it’s time to change (or clean, in the case of your dust screen) your filters, getting to them is easy. The entire front panel is held on by magnets (better than plastic tabs which can break over time). The filters themselves are easy to find right here on Amazon, and they are reasonably priced. You’ll be switched over in minutes. Your biggest hassle just might be tearing your new filters out of its packaging.Now let’s talk about features. For the vast majority of the people, simply hitting the “auto” button will work. This unit has an air quality sensor, and it will automatically increase its fan speed when it senses that your air quality has declined. Once air quality improves, it’ll slow down its fans. It’s a set-and-forget type of thing.For those who are more hands-on, you can bypass the auto mode and choose your own fan speed. This is useful if you’re running this unit in a room that needs more “reach,” or if you find the white noise of the fans to be soothing. On maximum speed, the unit is still quiet enough to hold a conversation next to it—a box fan is far, far louder. The filtered air is pushed upward, where it can more easily circulate in the room without diluting the denser polluted air it has yet to filter. This helps the purifier do a more efficient job.The air quality monitor lets you know what your room’s air quality is by showing you one of three colors: Blue means your air quality is good; Amber means it’s… well… mediocre; Red means bad. Pretty easy stuff, and easy to see from across the room. The various functions and features are backlit, so even in a dark room you won’t have any trouble selecting what you want. For those who are bothered by the indicator lights, there’s a night-time mode which turns them off.The unit itself is well thought-out and constructed. It doesn’t draw attention to itself, and will blend with most any decor. There’s no remote control that you’ll never use, and the controls are so well laid-out you’ll very likely never need to go digging around for the manual.My brother-in-law owns this unit, and it was on his recommendation that we ordered ours. We liked our first one so much, we quickly bought a second unit to go in our daughter’s bedroom. The difference has been striking. Now we only have to deal with wildfire smoke when we venture outside. The dry eyes and sniffles have reduced dramatically. If that sounds like the kind of world you wish to create for yourself in your own home, why not place your order today?

Nowhere in the product description does it say that this is a 120V product which most of the world does not use. I plugged it in uae and the unit got busted. Waste of hard earned money 845 dhs and wait time. Worse still no warranty in the UAE. Worldwide buyers be warned and stay AWAY from useless products like this.

A very good air purifier with a washable pre filter and carbon filter.Design is okay. Easy to install .Noise level is surprisingly low and in night it automatically reduces fan speed if auto mode is selected. As for allergens I think it’s doing a decent job.Its a good value product overall. Plasmawave feature actually works and odour is drastically reduced.